MR9600 User Guide
68 CommPlete Communications Server
Introduction
This chapter provides information needed to identify an d fix problems with the MR9600. Problems can be
diagnosed by observing the LED indicators on the MR9600’s front panel, or through the dedicated
management console’s screen. Also, problems can be found by performing the diagnostic tests
documented in Chapter 8 of the MultiCommManager Owner’s Manual.
For specific MultiModem troubleshooting information, refer to the MultiModem Owner’s Manual shipped
with your MultiModem. For basic Windows messages, refer to your Windows manual or Help screens. Fo r
a description of the MR9600’s LED indicators, see Chapter 1.
MR9600 Diagnostic Tests
If you suspect that your MR9600 is not functioning properly, you can run t he following diagnostic tests to
test the MR9600’s hardware capabilities.

1. Refer to Figure 3 on page 8 to locate the test jumper on the MR9600 Co ntroller card. Put the test

jumper into the loopback position, so the two pins are shorted t ogether. Reinstall the MR9600
assembly into the CC9600 chassis. Plug the 10Base-T loopback jumper into the Et hernet connector
labeled “LAN” on the rear of the CC9600 chassis.

2. Run MultiExpress or another datacomm program on a PC at 115,200 bps with no flow control. Connect

the COM port used by the datacomm program to the MR9600’s RS-232 port on th e rear of the
CC9600 chassis.

3. Reset the MR9600 by pressing the reset button on the front with a pape r clip, or turn the CC9600

chassis off and on.

4. When prompted to start manually, press a key.

5. When prompted to enter a user name and password, log in as supervisor.

6. Type the command HDTEST and press ENTER.

7. You will see a menu. Proceed with testing in the following order:

WARNING: Running options out of order or ones not specified may cause unpredictable results.
Test 2 Red LEDs on.
Test 3 Green LEDs on.
Test 4 All LEDs off.
Test 5 Flash memory test.
Test 7 Ethernet loopback test.
Watch for the green Ethernet LED on the left side of the front panel; it should be on solid.
Numbers stopped and packets received will match.
Test 1 Start backplane. LEDs on the front panel of the MR9600 should ref lect the number of cards
installed.
Test a Sets segment 1 modems to 9600 bps.
Test b Sets segment 1 modems OOS.